Gas burner



Nov. 26, 1935.

A. A. KING 2,022,568

GAS BURNER Filed April 2'7, 1935 Patented Nov. 26, 1935 UNITED STATES PATENT OFFICE Claims.

This invention relates to burners and more particularly to an improved type of gas burner for use with automatically controlled heating means.

An object of this invention is to provide an improved type of gas burner and means for controlling the mixture of air with the gas so as to automatically regulate the quantity of air dependent upon the quantity of gas.

A further object of this invention is to provide in an automatically controlled heating means, a gas burner and mixing means for automatically mixing air with the gas dependent upon the quantity of gas passing to the burner, the invention also comprehending the use of an adjustable means whereby the burner may be used in different localities where the pressure of gas varies.

A still further object of this invention is to provide a burner including means for coupling a plurality of jets to a manifold with each jet independently controlled so that one or more of the jets may be cut off without affecting the quantity of air entering the burner structure so that when it is desired to turn on the remaining jets it will not be necessary to readjust the air controlling means, as is the case with burners at present available.

The above and various other objects and advantages of this invention will in part be described in, and in part be understood from the following detail description of the present preferred embodiment, the same being illustrated in the accompanying drawing wherein:-

Figure 1 is a horizontal section taken substantially through the center of a device constructed according to an embodiment of this invention.

Figure 2 is a sectional view taken on the line 2-2 of Figure 1.

Figure 3 is a fragmentary front elevation of the device.

Referring to the drawing wherein like numerals of reference designate corresponding parts throughout the several views, the numeral I0 designates generally a gas supply line and the numeral I3 designates a pipe line connected to a furnace or heater structure. The gas line l0 has a valve shown diagrammatically at H, connected thereto and a thermostatic control means also diagrammatically shown at i2 is connected to the pipe line I3 and this control means l2 opens or closes the valve l by means of a lever I4 mounted on a valve stem or rock shaft l5, associated with the valve The thermostatic control means l2 and the valve structure El and the associated parts are conventional and are here shown only diagrammatically, it being understood that the thermostatic means l2 may be of any suitable type used for opening and closing the valve I.

A box or housing it has a manifold I7 disposed therein and adjacent the forward end thereof which is connected to the valve H by means of a pipe l8. This manifold I 1 has a gas nozzle structure l9 connected thereto by means. of a, pipe 20 and a cut-off valve or control means 2| is interposed in the pipe 20 between the nozzle structure l9 and the manifold Il. may be two or more of these gas ejecting memhers I 9 within the housing 6 and each of the gas ejecting members may be connected to the manifold I! so that the pressure of gas at the ends of the nozzles will be the same in each case. The gas nozzle structure comprises a housing 22 preferably cylindrical in construction and provided with a plurality of forwardly extending nozzle members 23. A cylindrical mixing member 24 is slidable through the inner wall 25 of the housing H5 and is connected to a cylindrical guide member 26 slidable on the housing 22 by means of a pair of arms 21 so that the mixing member 24 will be disposed in forwardly spaced relation to the housing 22. The valve 2| has a valve stem 28 to which is secured a lever 29 and this lever 29 is connected to the slidable guide member 26 by means of .a link 30 provided with a plurality of spaced apart holes 3| so that the guide member 26 may be adjusted to the desired position along the length of the support or housing 22.

The link is connected as by lugs 32 to the guide member 26. A lever 33 is secured to the end of the stem 28 which projects through the 30 side wall 34 of the housing l6 and rocking of this lever 33 will not only adjust the opening in the valve 2| but will also adjust the mixing chamber 24 relative to the nozzles 23.

The outer end of the housing I6 is preferably 35 open and shutters or air valve members 35 are rockably secured to the sidewalls 34 and control the opening in the outer end of the housing l6 so as to regulate the quantity of air passing through the housing. In the present instance, there are shown two shutters or valve members 35 connected together as by a link 36 so that these shutters are open or closed as a unit.

The opening or closing of the shutters 35 is automatically controlled by means of a rock lever 31 which, in the present instance, is connected to or made a part of the rock lever 4 and the rock lever 31 is connected by a link 38 to the link 36 which, as shown in the drawing, is provided with a plurality of spaced apart holes 39. A weight or balancing member 40 is mounted on an arm 4| which may be integral with the two levers l4 and 3! but extending on the opposite side of the axis of the rock shaft 5. In the use and operation of this device, the main valve connected to the gas supply line It] is opened and 7 when the heater to which the pipe I3 is connected is cold the valve I will be opened by the thermostatic means l2.

Opening of the valve II will cause the rock If desired, there 5 arm or lever 31 to be moved preferably in an upward direction so as to swing the shutters 35 into quantity of air entering through the opened shutters 35 will mix in the chamber24 with the gas ejected from the nozzles 23. If desired, one of the burners I!) may be cut oii by swinging the associated lever 33 so as to close the valve 2| whereupon the gas will flow to the other of the burners. In this manner the quantity or heat will be lessened but the quantity of air entering the housing it will be the same as for the plurality of burners.

When more heat is desired, the remaining burners may be turned on but this action will not require any adjustment of the shutters 35 so as to regulate the air entering the housing [6. It will be apparent that an exceedingly simple burner structure has been disclosed which can be mounted in any furnace or boiler and connected to conventional thermostatic control means so that the thermostatic means will adequately control the combustion of the gas or fuel at all times.

It is,'of course, understood that various changes and modifications may be made in. the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims.

I claim:- a 1 1. A gas burner comprising a housing open to theatmosphere at its outer end and provided with an inner end wall having an opening, jet means within the housing, a' mixing member slidable through saidopening and movable relative to said jet means, said mixing member simultaneously receiving gas from the jet means and air from .the interior of the housing, means operable excomprising a housing open to the atmosphere at its outer end and provided with an inner end wall having an opening, jet means within the housing, means for connecting the jet means to a source of gas supply,'a mixing member slidable through said opening and movable relative to said jet means, said mixing member simultaneously receiving the gas fromthe jet means and air from the interior of the housing, means operable exteriorly of the housing for adjusting the mixing member relative to the jet means whereby to control the admission of air into the mixing member, a damper at the open end of the housing, a thermostatic means, and means for connect ing the damper to the thermostatic means to thermostatically control the opening and closing of the damper.

3. Afthermostatically controlled gas burner comprising a housing open to'the atmosphere at its outer end and provided with an inner end wall having an opening, said housing being insertible in a furnace or boiler, jet means within the housing, a mixing member slidable through said opening and movable relative to said jet 5 means, said mixing member simultaneously receiving gas from the 'jet means and air from the interior of the housing, means for connecting the jet means to a source of gas supply, a

manually controllable valve in said connecting 7 means, means connected to the valve and the mixing member to simultaneously adjust the member relative to the jet means while opening or closing the valve whereby to control the admission of air into the mixing member, a damper at the open end of the housing, a thermostatic 7 means and means for connecting the damper to means and air from the interior of the housing,

manually operable means connected to the valve and the .mixing member to simultaneously move the mixing member relative to the jet means while opening or closing the valve whereby t0 control the admission of air into the mixing member, a damper at the open end of the housing, a thermostatic means, a rock lever secured to said thermostatic means and means for connecting the lever with the damper to thermostatically control the opening and closing of the damper.

5. A thermostatically controlled gas burner comprising a housing adapted to be inserted in a furnace or boiler and provided with an outer end open to the atmosphere and an inner end wall having an opening, jet means within the. housing, a manifold within the housing, means for connecting the manifold with the jet means, a valve interposed in said connecting means, a

slide carried by said jet means, a mixing member open at each end disposed forwardly of the jet means and projecting through said opening, said mixing member'receiving gas discharged by the jet means while simultaneously receiving air from the housing, means connecting the slide 65 with the mixing member whereby to dispose the mixing member in forwardly spaced relation'to the jet means, manually operable means connected to "the valve and to the slide to manualiy control the position of the mixing member relative to the jet means while opening or closing the valve, movement of the mixing member relative to the jet means controlling the admission of air into the mixing member, means for connesting the manifold to a source of gas supply, a second valve in said latter connecting means, thermostatic means connected to the second valve, a damper at the open end of the housing and means connecting the damper with the second valve to swing the damper to opened or closed position coactive with the movement of the second valve to opened or closed position.

ALBERT A. KING. 

